Winding mechanism



22 1927. Feb P. B. cAMP www@ MEcHANrsM Filed Oct.. 5

Patented Feb. 22, 1927.

UNITED .STATES 1,618,753 PATENT OFFICE.

PERCY IB; CAMP, OF MAYWOOD, ILLINOIS, .ASSIGOR TO UNIVERSAL DRAFT GEARATTACHMENT CO.,v A CORPORATION OF ILLINOIS.

` WINDING MECHANISM.

Other objects and advantages of the invention will become apparent asthe disclosure proceeds and the description is read in connection withthe accompanying drawings, yillustrating the preferred embodiment of theinvention, and in which Fig. 1 is a plan view of a fragment of a railwaycar with a winding mechanism embodying the invention applied thereto;

Fig. 2 is a. sectional view taken on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken on the line 33 of Fig. 2;

Fig. 4 is a sectional view taken on the line 4?4 of Fig. 3;

Figs. 5 and 6 are perspective views of component parts of the sleeveused in this preferred embodiment to swivel the various parts together',and

Fig. 7 is a fragmentary sectional view illustrating a slightmodification by which the structure is adapted to use with a squareshaft. y A conventional brake staif is shown at 10 journaled at itslower end in a. bar or step 11 and at its upper end in a bearing 12carried by a bracket 13, secured to ya railway car indicated by thefragment 111.

The shaft is wound by a. ratchet and pawl mechanism including a ratchetwheel 15, mounted to rotate with the shaft 10, a hand lever 16 vmountedto rotate about the shaft and equipped with a pawl 17 cooperating withthe ratchet wheel` whereby swinging the hand lever between the dottedVline positions 'A and B in Fig. 1 will result in rotating the shaftclockwise in that figure.

The shaft is held against unwinding by a pawl 18 mounted at 19 in thebracket 13 and having a counter-weighted heel 20 con stantly urging thepointed toe 21 into engagement with the ratchet wheel.

In this preferred embodiment the bracket 13, the ratchet wheel 15 andthe hand level` 16 are assembled upon a sleeve 22 which Serves .to holdthese parts together as a unit. In the particular form shown the sleeveis made of four longitudinal sections, three having the form indicatedat 23 (Fig. 6) and one having the form indicated at 24- (Fig. 5). Theupper ends of the sections are provided with. flanges 25 and 26 whichhave projections 27 adapted to scat in pockets 28 in the ratchet wheel15 and secure the sleeve thereto against both rota-tive and longitudinalmovement. The sections also have flanges 29 which form a flange adaptedto' lie just below the bearing 12, they also have other flanges 30forming a flange at the lower end of the sleeve to support a hub 31having a laterally extending lug 32, upon which the forked arms 33 ofthe bent hand lever 16 are pivotally mounted by a pin 34.

In assembling the sleeve with the bearing, theratchet wheel and the handlever, the

parts 23 are inserted and arranged with.

their edges in contact as indicated in Fig. y

3, then the segment 24 is inserted and its edge 35 laid against the edge36 of one of the segments 23 after which the segment 24 is rotated aboutthe contacting edges 35 and 36 to bring its opposite edge 37 intoalignment with the adjacent edge 38 of the segment 23, on the oppositeside of the shaft from the segment having the edge 36. The edge 37 ofthe segment 24 is cut away slightly to facilitate swinging this elementinto position by the corner of the edge 33.

It is not necessary to fasten the segments of the sleeve together forthey form a sort of loose locking engagement with each other, whichprevents collapsing of the sleeve and, therefore, prevents the assemblyfrom becoming separated in handling or shipping. This unit may,therefore, be manufactured and supplied to car owners who may apply itby merely inserting the conventional, or any suitable. brake staff andbolting the bearing 12 t-o the car. This permits the assemblingoperations to be performed by especially skilled workmen in a shopequipped with facilities for rapid and economical work, and permits theuser to receive a unit vwhich its workmen can mount with a minimum oftime and labor.

It is preferable that ratchet wheels of Vhand brake mechanisms haveteeth on their lower sides so as to be protected from accumulation ofice, cinders and the like that would interfere with the operation. Thelocking pawl 17, or its equivalent, arranged to engage another ratchetwillfhave a tendency to force the shaft upwardly. With the presentconstruction this upward thrust is resisted by the collar 29 coming incontact with the lower edge of the bearing 12. The sleeve 31 on whichthe hand lever is mounted is, therefore, left free frombinding and canbe swung back and forth with a minimum of effort. This feature of thepresent construction represents an improvementover that shown in myprier Patent No. 1,528,105 granted December 30, 1924, where aninaccurate mounting of the bracket 15 would permit the collar 29 toclam) the sleeve 28 against the bearing13.

In this preferred embodiment the sleeve 22 has a cylindrical bore toreceive the cylindrical portion of the brake shaft while the ratchetwheel is equipped with a hub 40 having a polygonal opening el to receivethe polygonal portion 42 of the conventional brake shaft.

In some instancesit will be found desirable to use a shaft that ispolygonal 'for the greater part of its length and in that case thesections 23 and '24 will be formed with angular recesses which,together, make up a hole corresponding to the shape of the shaft, asindicated in Fig. 7, where 43 indicates the shaft and 14C and 45indicates the sections of the sleeve.

I claim as my invention:

1. In a device of the class described,fthe combination of a rotatableshaft, a ratchet wheel fixed against rotation relative'to the shaft, abearing for the shaft, a sleeve swiveling the `ratchet wheel to thebearing, a hand lever swiveled on the sleeve and a pawl carried by thelever' and engaging the ratchet wheel.

'2, In a device of the class described,` the combination of a rotatableshaft, a ratchet wheelixed to rotate with the shaft, a pawl for holdingsaid shaft against unwinding, a hand lever rotatable about'the shaft, aypawl carried vby the hand lever and cooperating with the ratchet wheelto wind the shaft, agbearing for the shaft, andmeans for swiveling theratchet wheel to lthe bearing above the hand lever.

3. In brake mechanism a bearing adapt ed to ybe mounted upon a railwaycar, a 'ratchet wheel, a hand lever, and a sleeve en- ;gagedwith theratchet wheel and making 'a swivel connec'tionbetween the ratchetwheeland the hand lever and the bearing.

- 4. 'Ina brake mechanism avbe'aring adapted to be secured to a railwayear, a ratchet wheel rotatable with "respect to the bearing', ahandlever rotatable with respect to the -l-bearing and the ratchetwheel, a sleeve including a plurality oflongitudinal sections 4holdingthe ratchet wheel, the bearing and 'the hand -lever vin axial alignment,and lflanges onthe sleeve sections limitin'gm'ove ment of said partslengthwise to `the sleeve.

5. In a brake mechanism a bearing adapted to` be mounted upon a railwaycar, a ratchet wheel at one side of the bearing, a

sleeve extending through the bea-ring and interlocked with the ratchetwheel to prevent their Vaxial separation, and a ilange on the sleeveengaging the bearing on the side opposite to the ratchet wheel.

6. In a brake mechanism a bearing adapted to be ymounted upon a yrailwaycar, a ratchet wheel at one side of the bearing, a sleeve extendingthrough the bearingand interloclred with the ratchet wheel'to preventtheir aXial separation, a flange on-'the sleeve engaging the bearing onthe side opposite to the ratchet wheel, a hand lever jour-V a ratchetwheel at oneside Yof :the bearing,l

a hand lever hub at the opposite 4side of the bearing and a sleeveextending through the hand lever hub and the bearing'and into theratchet wneel, vsaid sleeve having external flanges limiting themovement'of the ratchet wheel, the bearing and the hub with `respect tothe sleeve.

8. In `a brake mechanism a bearing adapted to be mounted upon a railwaycar, a ratchet wheel and a ylever arranged on opposite sides of thebearing and having hores aligned therewith, a sleeve in *the alignedbores and comprising a plurality of `lo1i ,itudinal'sections providedwitlreXternal flanges limiting longitudinal 4movement of theV parts withrespect to the sleeve.

`9. In a brale mechanism for railway cars, the combination of la bearingmountedona car, a sleeve swiveled in the bearing, a brake staff receivedin the sleeve, a ratchet wheel abovethe bearing and connected with -thesleeve and fixed against rot-ation frelati-ve to a bra-lie stall", aholding pawl engaging the ratchet wheel with an upward thrust, .a handlever swiveled on-the sleeve below the bearing, andiapawl for connectingthe hand lever and the ratchet wheel.

10. In a bralte mechanism fon railway cars, the combination of a'rotatable shaft, a' bearing for Ithe shaft, a ratchet wheel fixedagainst rotation relative to the shaft, a sleeve swiveled in the`bearing and holding the `ratchet `wheel against movement away from thebe: Ting, a holding paw] `engaging the -iatciet wheel and tending tomove it awayr fromthe bearing, a hand leverrotatal ble about the shaftbelow the bearing, and a pawl connecting the lever and 4the ratchetwheel.

`11. lIn a brake mechanism 'for railway cars, the combinationof arotatable shaft, Ta bearing for ythe shaft,a ratchet wheel havlll) ingteeth on its lower side mounted above the bearing and lixed againstrotation with respect to the shaft, a holding' pawl adapted to engagethe teeth of the ratchet wheel with an upward thrust7 a sleeve swiveledto the bearing and holding the ratchet wheel against movement away fromthe bearing, and a hand lever cooperating with the ratchet wheel to windthe shaft.

12, In a brake mechanism for railway cars, the combination ot arotatable shaft, a bearing for the shaft, a sleeve between the shaft andthe bearing and having a flange below the latter, a ratchet wheelnonrotatably mounted on the shaft above the bearing and made fast to thebearing by engagement with the sleeve a holding pawl engaging theratchet wheel and tending to move it upwardly away from the bearing andthe hand lever below the flange on the sleeve and cooperating with theratchet wheel to wind the shaft.

13. In a brake mechanism for railway cars, the combination of a bearing,a ratchet wheel rotatable with respect to the bearing, a hand leverrotatable with respect to the bearing and the ratchet wheel, a sleeveincluding a plurality of longitudinal sections connecting the ratchetwheel, the bearing and the lever, and a rotatable shaft within thesleeve and fixed to rot-ate with the ratchet wheel.

14. In a brakel mechanism, a rotatable shaft, a bearing for the shaft, aratchet wheel iixed against rotation with respect to the shaft and atone side of the bearing, a holding paw] engaging the ratchet wheel andtending to move it away from the bearing, a hand leverl rotatable aboutthe shaft on the opposite side of the bearing from the ratchet wheel andmeans interposed between the hand lever and the bearing to preventbinding due to the thrust of the holdingl pawl.

In testimony whereof I affix my signature.

PERCY B. CAMP.

